TM 5-3805-296-23-2
0090
Table 1. 1775 Implement Pump Pressure Calibration Switch Diagnostic Codes.
0090
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
1775-03 Implement Pump
Pressure Calibration Switch
Always inspect harness connectors that are involved in the circuit. Poor
Voltage Above Normal
connections can often be the cause of a problem in an electrical circuit.
Verify that all connections in the circuit are clean and secure and that all
connections are in good condition. If a problem with the connection is
found, correct the problem and verify that this malfunction or diagnostic
code is active before performing this procedure.
Perform open or short-circuit test at each harness connection to identify
the correct harness to replace.
Tag all wiring harnesses to aid in installation.
Perform this test only if condition is active.
DIAGNOSTIC CODE SET CONDITION
Transmission/Chassis ECM Detects Above Normal Voltage on Cal Press Switch
Circuit M904 or M905.
POSSIBLE CAUSE
Transmission Wiring Harness Shorted.
Chassis Wiring Harness Shorted.
Main Cab Wiring Harness Shorted.
Transmission/Chassis ECM.
Test Step 1. Test for Shorted
Transmission Wiring Harness.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
2. If connected, disconnect pressure
calibration switch from connector
A-C12 (WP 0012, Figure 103).
3. Disconnect connector A-C1
(WP 0012, Figure 106) from
connector J-C3 (WP 0012,
Figure 101).
4. Using digital multimeter
Continuity Replace transmission
(WP 0540), test for continuity
wiring harness (WP 0266).
between connector A-C1
Proceed to Test Step 4.
terminal 6 (WP 0012, Figure 106)
No Continuity Proceed to step 5.
and all other terminals in
connector A-C1 (WP 0012,
Figure 106).
5. Using digital multimeter
Continuity Replace transmission
(WP 0540), test for continuity
wiring harness (WP 0266).
between connector A-C1
Proceed to Test Step 4.
terminal 14 (WP 0012, Figure 106)
No Continuity Proceed to Test
and all other terminals in
Step 2.
connector A-C1 (WP 0012,
Figure 106).
